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PER: Player Efficiency Rating explained

By John Hollinger
ESPN Insider

Wednesday, August 17, 2005

The Player Efficiency Rating (PER) is a rating of a player's per-minute productivity. To generate it, I created formulas -- which I've outlined in tortuous detail in "Pro Basketball Forecast" -- that return a value for each of a player's accomplishments. That includes positive accomplishments, such as field goals, free throws, 3-pointers, assists, rebounds, blocks and steals, and negative ones, such as missed shots, turnovers and personal fouls. Two important things to remember about PER is th ...

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